South African Katanga Mikado 2-8-2

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Power typeSteam
Power typeSteam
BuilderH.K. Porter, Inc
South African Katanga Mikado 2-8-2
Bas Congo á Katanga Class 201
Builder's picture of Katanga Mikado no. 201, c. 1917
Type and origin
Power typeSteam
DesignerH.K. Porter, Inc
BuilderH.K. Porter, Inc
Serial number5993-6016
ModelBCK Class 200
Build date1917
Total produced24
Specifications
Configuration:
  Whyte2-8-2 (Mikado)
  UIC1′D1′ n2 as built
1′D1′ h2 reboilered
Driver3rd coupled axle
Gauge3 ft 6 in (1,067 mm) Cape gauge
Coupled dia.44 in (1,118 mm)
Wheelbase16,527 mm (54 ft 2.67 in)
  Engine27 ft (8,230 mm)
  Coupled12 ft 6 in (3,810 mm)
  Tender5,485 mm (17 ft 11.94 in)
  Tender bogie1,625 mm (5 ft 3.98 in)
Length:
  Over beams18,230 mm (59 ft 9.72 in)
Frame typePlate
Axle load13 LT 12 cwt (13,820 kg)
Adhesive weight122,000 lb (55,340 kg)
Loco weight152,000 lb (68,950 kg)
Tender type2-axle bogies
Fuel typeWood
Firebox:
  TypeRound-top
  Grate area36.7 sq ft (3.41 m2)
Boiler:
  Pitch2,897 mm (9 ft 6.06 in)
  Tube plates5,087 mm (200.28 in)
  Small tubes236: 51 mm (2.01 in)
Boiler pressure210 psi (1,448 kPa)
Heating surface:
  Firebox120.5 sq ft (11.19 m2)
  Tubes2,059.5 sq ft (191.33 m2)
  Total surface2,180 sq ft (203 m2)
CylindersTwo
Cylinder size19 in (483 mm) bore
22 in (559 mm) stroke
Valve gearWalschaerts
Valve typeSlide
CouplersJohnston link-and-pin (SAR)
Performance figures
Tractive effort32,219 lbf (143.32 kN) @ 75%
Factor of adh.3.79
Career
OperatorsSouth African Railways
Beira & Mashonaland & Rhodesia
CF du Bas Congo á Katanga
ClassBCK 201
Number in classSAR 4 or 6
NumbersBCK 201-224
NicknamesKatanga Mikado
Delivered1917
First run1917
Withdrawn1970s

The South African Railways Katanga Mikado 2-8-2 of 1917 was a steam locomotive used in South Africa.

In 1917, the South African Railways placed at least four 2-8-2 Mikado type steam locomotives in service. They had been built for the Chemins de Fer du Bas Congo à Katanga (BCK) in the Belgian Congo and were obtained on temporary lease to alleviate the critical shortage of locomotives as a result of the First World War's disruption of locomotive production in Europe and the United Kingdom.[1][2]

As a result of the disruption caused by the First World War, no new Cape Gauge locomotives could be introduced on the South African Railways (SAR) during 1916 and, by 1917, the rolling stock position was rapidly becoming critical, particularly regarding locomotives. New engines were almost unobtainable and spare parts so scarce that repairs and general overhauls had to be postponed to the utmost to keep engines in service. By March 1919, after the end of the war, 187 new locomotives and fourteen spare tenders were on order or authorised.[1][2]

Manufacturer

To partly alleviate the locomotive shortage, the SAR was able to lease four (six according to one source) of twenty-four new 200 Class 2-8-2 Mikado type tender steam locomotives which were built by H.K. Porter, Inc. of Pittsburgh, Pennsylvania between June and October 1917 for the Chemins de Fer du Bas Congo au Katanga (BCK) in the Belgian Congo.[1][2][3][4][5]

Six more of these engines were leased to the Beira and Mashonaland and Rhodesia Railways (BMR), which operated between Umtali in Southern Rhodesia and Beira in Mozambique and which also experienced a critical shortage of motive power. The locomotives were numbered in the BCK range from 201 to 224, but the engine numbers of the individual locomotives which were leased to the SAR and BMR are not known.[3]

The arrangement was probably made possible because construction of the Congolese line from the Northern Rhodesian border to Port Francqui, for which the locomotives were intended, was just being completed at the time and the full complement of locomotives were not required immediately by the BCK.[6]

Characteristics

Service

References

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